Genetics: Introduction

Genetic improvement of aquaculture species offers an opportunity for increased production efficiency, health management, increase in product quality, and finally increase in profitability of aquacultural enterprises (Davis and Hetzel, 2000).
Technologies exist actually to genetic improve include estimation of genetic parameters that describe population and their differences, evaluation of genetic merit of individuals or families and defining the structure of a breeding programme in terms of mating plans. Properly designed breeding programs can make appropriate use of additive and non-additive genetic variation for traits of economic importance and minimise the negative effects of inbreeding (Moore et al, 1999).
For penaeids shrimps the information needed to implement this technology succesfully is lacking because of difficulty in domestication and in characterization of markers for these species (Moore & Lehnert, 1998). In this review information avalaible about shrimp genetic is presented.

This chapter will cover: